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From 3f6b71254c91d80d5a77a0124ecb6a5587ec4b10 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 7 Nov 2019 18:13:14 -0500
Subject: [PATCH 4550/4736] drm/amdgpu: start to disentangle boco from runtime
pm
BACO - Bus Active, Chip Off
BOCO - Bus Off, Chip Off
We originally only supported runtime pm on PX/HG
laptops so most of the runtime pm code looks for this.
Add a new flag to check for runtime pm enablement and
use this rather than checking for PX/HG.
Change-Id: I09683aeef460c4a64ce904d0b21f8d949617a97c
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rahul Kumar <rahul.kumar1@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 9 ++++++---
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 13 ++++++++-----
3 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 9679649082cb..ccb1fd7cd2b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1035,6 +1035,8 @@ struct amdgpu_device {
/* device pstate */
int pstate;
+ /* enable runtime pm on the device */
+ bool runpm;
};
static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 036e253def85..6957ef4ef514 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1247,9 +1247,10 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ struct amdgpu_device *adev = drm_dev->dev_private;
int ret;
- if (!amdgpu_device_supports_boco(drm_dev)) {
+ if (!adev->runpm) {
pm_runtime_forbid(dev);
return -EBUSY;
}
@@ -1279,9 +1280,10 @@ static int amdgpu_pmops_runtime_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ struct amdgpu_device *adev = drm_dev->dev_private;
int ret;
- if (!amdgpu_device_supports_boco(drm_dev))
+ if (!adev->runpm)
return -EINVAL;
if (amdgpu_device_supports_boco(drm_dev)) {
@@ -1308,9 +1310,10 @@ static int amdgpu_pmops_runtime_resume(struct device *dev)
static int amdgpu_pmops_runtime_idle(struct device *dev)
{
struct drm_device *drm_dev = dev_get_drvdata(dev);
+ struct amdgpu_device *adev = drm_dev->dev_private;
struct drm_crtc *crtc;
- if (!amdgpu_device_supports_boco(drm_dev)) {
+ if (!adev->runpm) {
pm_runtime_forbid(dev);
return -EBUSY;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 591558fc6a9f..ab7697d7b70a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -88,7 +88,7 @@ void amdgpu_driver_unload_kms(struct drm_device *dev)
if (amdgpu_sriov_vf(adev))
amdgpu_virt_request_full_gpu(adev, false);
- if (amdgpu_device_supports_boco(dev)) {
+ if (adev->runpm) {
pm_runtime_get_sync(dev->dev);
pm_runtime_forbid(dev->dev);
}
@@ -147,14 +147,17 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
}
dev->dev_private = (void *)adev;
- if ((amdgpu_runtime_pm != 0) &&
- amdgpu_has_atpx() &&
+ if (amdgpu_has_atpx() &&
(amdgpu_is_atpx_hybrid() ||
amdgpu_has_atpx_dgpu_power_cntl()) &&
((flags & AMD_IS_APU) == 0) &&
!pci_is_thunderbolt_attached(dev->pdev))
flags |= AMD_IS_PX;
+ if ((amdgpu_runtime_pm != 0) &&
+ (flags & AMD_IS_PX))
+ adev->runpm = true;
+
/* amdgpu_device_init should report only fatal error
* like memory allocation failure or iomapping failure,
* or memory manager initialization failure, it must
@@ -177,7 +180,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
"Error during ACPI methods call\n");
}
- if (amdgpu_device_supports_boco(dev)) {
+ if (adev->runpm) {
dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
pm_runtime_use_autosuspend(dev->dev);
pm_runtime_set_autosuspend_delay(dev->dev, 5000);
@@ -190,7 +193,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
out:
if (r) {
/* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */
- if (adev->rmmio && amdgpu_device_supports_boco(dev))
+ if (adev->rmmio && adev->runpm)
pm_runtime_put_noidle(dev->dev);
amdgpu_driver_unload_kms(dev);
}
--
2.17.1
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